This manual is for the maintenance of ZF 4HP-18FLE and ZF 4HP-18 FLA automatic transmissions, which includes fault diagnosis, maintenance, and troubleshooting
This service manual provides diagnostic information and repair guidance for ZF 4HP-18FLE and 4HP-18 FLA automatic transmissions installed in Audi and Porsche vehicles. It includes detailed valve body diagrams, solenoid resistance charts, wiring schematics, and component locations for troubleshooting electrical and mechanical issues. The manual is intended for technicians and covers specific models such as the E-7 and E-9 valve body variants with 5 and 4 solenoids, respectively. It also includes exploded views of key components for accurate repair.
Audi 100 Quatro, A6 (1991-1997), Audi A8 (1994-1996), and Porsche 944 (1991-1994).
30-40 Ohms @ 68°F (20°C).